Shields got lucky that Hendo ran out of gas. Hendo not only looked old but he looked a lot bigger and perhaps out of shape then he did in the UFC. Vintage Hendo would have finished Shields easily.
I saw the brawl on youtube also...the diaz brothers and melendez are a bunch of idiots, Mayhem was trying to get a rematch and not start a fight. I don't think Melendez would do much in the UFC...it's a really favoritable match against Akoi because he can't strike and doesn't have wrestling, so he has to pull guard or hope Melendez gets sloppy. I think guys like BJ, Florian, Edgar, Maynard, and even Roger Huerta would beat Melendez w/out any problems.
I don't know what Dana thinks about the brawl, but its going to be hard for strikeforce to get back on to CBS. That card was boring and then the brawl.